#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
int main()
{
	int year = 1000;
	for (; year < 2001;  year++)
	{
		if ((year % 4 == 0 && year % 100 != 0 )|| year % 400 == 0)
		{
			printf("% d", year);
		}
	}
}